Publicis Groupe

Publicis Groupe is one of the four largest advertising groups in the world (the other three being WPP Group, Omnicom Group, and Epez Group), founded in 1926 and headquartered in Paris, France, with Shangqi Advertising, Leo Burnett Advertising, etc. It announced a merger with Omnicom Group in 2013, and then announced that the merger was canceled in 2014.